A catalog company has hired you to computerize its sales order entry forms. Approximately 60 percent of all orders are received over the telephone, with the remainder received by either mail or fax. The company wants the phone orders to be input as they are received. The mail and fax orders can be batched together in groups of 50 and submitted for keypunching as they become ready. The following information is collected for each order:

• Customer number (if customer does not have one, one needs to be assigned)
• Customer name
• Address
• Payment method (credit card or money order)
• Credit card number and expiration date (if necessary)
• Items ordered and quantity
• Unit price

Required

Determine control techniques to make sure that all orders are entered accurately into the system. Also, discuss any differences in control measures between the batch and the real-time processing